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Sidelight backlight module

A backlight module and side-light technology, which is applied in the field of backlight modules, can solve the problem that the light guide plate cannot take into account the light coupling distance, and achieve the effects of avoiding warping, improving light coupling efficiency, and simple fixing methods

Active Publication Date: 2014-12-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an edge-lit backlight module that can avoid light guide plate warping due to expansion and can not take into account the light coupling distance in the prior art. The light plate is warped due to expansion, while ensuring the coupling efficiency

Method used

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  • Sidelight backlight module
  • Sidelight backlight module
  • Sidelight backlight module

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] image 3 It is an exploded schematic view of the edge-lit backlight module of the present invention. Figure 4 It is a sectional view of the edge-lit backlight module of the present invention. Such as image 3 and Figure 4 As shown, the edge-lit backlight module 200 of the present invention includes a backplane 201 and a heat dissipation plate 202 disposed on the backplane 201 .

[0031] The backboard 201 is roughly flat and includes a backboard main body 201a and a backboard sideboard 201b disposed on the edge of the backboard main body 201a, wherein the backboard sideboard 201b is per...

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PUM

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Abstract

A side light backlight module (200) comprises a back panel (201), a heat sink (202) arranged on the back panel (201), and a light bar (205) mounted on the heat sink (202). A light guide plate (208) is arranged above the back panel (201). A plurality of back panel clamping hooks (203) is arranged on the back panel (201); and the heat sink (202) is hooked and pressed by the back panel clamping hooks (203). An elastic body (207) is arranged between the back panel (201) and the heat sink (202). The elastic body (207) applies, to the heat sink (202), a horizontal elastic force towards the back panel clamping hooks (203), so as to position the heat sink (202) in the width direction of the heat sink (202). The side light backlight module (200) can avoid warpage of the light guide plate (208) caused by expansion, and ensure optical coupling efficiency.

Description

technical field [0001] The present invention relates to a backlight module, and more specifically, relates to a side-light type backlight module. Background technique [0002] Figure 1A It is an exploded schematic view of an edge-lit backlight module 100 in the prior art. As shown in FIG. 1 , this edge-lit backlight module 100 includes a backplane 101 and a heat sink 103 fixed on the backplane 101 by screws 102 . The LED light bar 104 is fixedly arranged on the heat sink 103 and is perpendicular to the heat sink 103 . A plurality of LEDs 105 are arranged on the LED light bar 104 . [0003] Figure 1B It is a cross-sectional view of an edge-lit backlight module in the prior art. combine Figure 1A and Figure 1B , the edge-lit backlight module 100 further includes a light guide plate 106 . On the backplane 101 , a positioning column 107 is arranged, and the positioning column 107 is perpendicular to the backplane 101 . The light guide plate 106 is disposed between the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V17/00F21V29/00F21Y101/02
CPCG02B6/0091G02F2001/133628G02F2001/133314G02B6/0085G02F1/133615G02F1/133314G02F1/133628
Inventor 贺虎
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD